package com.dews.web.controller.common;

import com.dews.common.bean.file.UploadFileInfo;
import com.dews.common.config.RuoYiConfig;
import com.dews.common.constant.Constants;
import com.dews.common.constant.FolderConstant;
import com.dews.common.constant.OssRamPropertiesConstant;
import com.dews.common.core.domain.BaseResponse;
import com.dews.common.utils.StringUtils;
import com.dews.common.utils.bean.OssEntity;
import com.dews.common.utils.file.FileOssUtils;
import com.dews.common.utils.file.FileUtils;
import com.dews.framework.config.ServerConfig;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.util.ArrayList;
import java.util.List;

/**
 * 通用请求处理
 *
 * @author qingfeng
 */
@RestController
@RequestMapping("/common")
public class CommonController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 " , fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败" , e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload" )
    public BaseResponse uploadFile(MultipartFile file) throws Exception {
        try {
            String url = FileOssUtils.upload(
                    file,
                    FolderConstant.FILE_TASK,
                    OssEntity.builder()
                            .bucket(OssRamPropertiesConstant.BUCKET)
                            .endpoint(OssRamPropertiesConstant.ENDPOINT)
                            .accessKeyId(OssRamPropertiesConstant.ACCESS_KEY_ID)
                            .secret(OssRamPropertiesConstant.SECRET)
                            .build()
            );
            String fileName = file.getOriginalFilename();
            BaseResponse ajax = BaseResponse.success();
            UploadFileInfo uploadFileInfo = new UploadFileInfo();
            uploadFileInfo.setUrl(url);
            uploadFileInfo.setFileName(fileName);
            uploadFileInfo.setNewFileName(FileUtils.getName(fileName));
            uploadFileInfo.setOriginalFilename(file.getOriginalFilename());

            ajax.setData(uploadFileInfo);
            return ajax;
        } catch (Exception e) {
            return BaseResponse.error(e.getMessage());
        }
    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads" )
    public BaseResponse uploadFiles(List<MultipartFile> files) throws Exception {
        try {
            // 上传文件路径
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files) {
                // 上传并返回新文件名称
                String url = FileOssUtils.upload(
                        file,
                        FolderConstant.FILE_TASK,
                        OssEntity.builder()
                                .bucket(OssRamPropertiesConstant.BUCKET)
                                .endpoint(OssRamPropertiesConstant.ENDPOINT)
                                .accessKeyId(OssRamPropertiesConstant.ACCESS_KEY_ID)
                                .secret(OssRamPropertiesConstant.SECRET)
                                .build()
                );
                String fileName = file.getOriginalFilename();
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            BaseResponse ajax = BaseResponse.success();
            UploadFileInfo uploadFileInfo = new UploadFileInfo();
            uploadFileInfo.setUrl(StringUtils.join(urls, FILE_DELIMETER));
            uploadFileInfo.setFileName(StringUtils.join(fileNames, FILE_DELIMETER));
            uploadFileInfo.setNewFileName(StringUtils.join(newFileNames, FILE_DELIMETER));
            uploadFileInfo.setOriginalFilename(StringUtils.join(originalFilenames, FILE_DELIMETER));
            ajax.setData(uploadFileInfo);
            return ajax;
        } catch (Exception e) {
            return BaseResponse.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource" )
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 " , resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/" );
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        } catch (Exception e) {
            log.error("下载文件失败" , e);
        }
    }
}
